Combination crusher and separator



July 1, 1930. H. RID-ER 1,769,310

COMBINATION ICRUSHER AND SEPARATOR Filed Feb. 20, .1928

Edward H R1216! lnueniof .5 jfiiarney Patented July 1, 1930 i i lSTATES. PATENT;- o FicE j l gnwARnH i JRVIDtJR, y TISH COLgUMBlACANe-jog i i p omgmmoe onUsHER AND ARAiOR e a "AppncamnlfiiledFebruaryyzo 923%swarm-255,845; a d ease Ma e 31; i927- f This inventionrelates to a combination the pebbles and rock,'the-latter being'passedcrusher and separator, its prime object has on entire along the chute.'The roller opspecial reference to the preparation and r'ene'rates'underan; adjustable spring control and dering marketable of a certain naturalprodthe yielding baseof the chute immediately not or deposit consistingchiefly of clam shell b l w it i t's f b of fl t b 55 or portionsthereof intermixed with pebbles, placed -together edge uppermost pivotalor pieces ofrock and the like." The purpose of hinging nearthei'r'intake end on an axis 7 the machine being to break or partiallycrush rightangular to the direction of the chute and; the larger shellsonly and to exclude or 'sepsupported near their other end by a cushion10 al'ate therefrom the p bb 1" c porti of rubber or oth'er'suitablyresilient material 60 which are then evacuated'as refuse from the orequivalent device. Thus all tl' emater'ial machine. delivered into thechute'passes the roller and Although the m i is p i n' tr y is thensubjected to a further'selective process 1 signed for this purpose itwill be obvious that by hi h the li e ingredient passes freely by slightmodifications which would not afalong the chute to thedeliveryflreceptacle-,= 65 feet the general principles of construction1n- Whilgt th bbl d o k r d fl ct d into volved that itcould be utilizedfor a variety id faperture o'f the chute and disposed of of otherpurposes without departure from as refuse: This is efie'ctedfby anoscillating, the spirit of the invention nor exceeding the baflle platepositioned transversely of the zo liniitations ofthe claim. chute at asuitable "distance below the r'oller,I

The clam shell material above referred to, and presenting an angularsurface to all the which exists in large deposits consists of descendingmaterial, the lower edge'of thepractically pure lime, and provided thatit baffle is cut away at suitable intervals leavcan be rapidly andcheaply freed from the acing a narrow aperture adj acent the chutesurcompanying debris with which it is almost fa d f j t ffi i t h i httoth 75; invariably found, forms a commercial comh l-1 f m nt 1 to pass, emodity of great comparative value. being deflected angularly towards theside's. ,1

The means which I adopt in this invention f th hut nd'di h d thr h n foreffecting the above named objects, namely ing therein 7 i the garneringof all the lime ingredients, and 1 To obvi t the possibility of thematerial 80* the reduction of the larger pieces to the compacking andpiling-up against the surface of mercial limit, whilst rejecting thepebbles and the baffle, the latter is' provided with'asimple otherdbris, consists in its essentials of an oscillating mechanism comprisingan ecceninclined chute into theupper part of which triopositioned-behind'the baffle andf'within the crude material is graduallyand evenly the angular 'space'fornied by the intersecting delivered byan adapted conveyer or other sid s, the eccentric is preferably drivenfrom suitable means. The inclination of the chute a transverseshaftcarried over the sides of is fixed at such an angle that the materialthe chute'and'making connection withthe readily slides'by gravitationalefl'ect accordsheave of the eccentric by a depending'spind'le 40 :ing tothe volume of the feed, and passing an'dbevel gearing, the speed of thisdeviceis 9 under a revolving circumferentially grooved so adjusted thatthe progress of the material roller is subjected to an adjustablepressure down the chute is maintained ina continuous, suiiicient tobreak the larger shell portions even, and rapid flow. I g 3 v but notthe pebbles and rock fragments. This "The invention is more clearlyexplained byselective result is effected by an arrangement the aid ofthe drawings herewith forminga which allows the surface ofthe chute atany part of this application in which lateral portion immediately belowthe roller, '-Fig. 1 is a side elevation of the device with to yield orgive way at an adjustable and prethe driving pulley removed. determinedpressure, which is set at such a Fig. 2 isa plan View. c

50- 'value as to break the shell fragments but not I 'Fig. 3is anenlarged View of'the roller and invention.

adjacent parts showing the yielding surface of the chute below theroller, being a cross section through the centre of the bearing, and afurther cross section in another parallel plane through the bottom ofthe chute showing the details of the yielding surface of the latterbelow the crushing roll.

Fig. 4 is a plan of the apex of the baflle member showing the positionof the oscillating eccentric.

In these drawings the numeral 5 indicates the sides of the wooden chute,6 the bottom or effective member, this is secured in connection withsuitable framework and inclined at an angle of about 30 degrees de-.pending upon the character of the material to be dealt with. The maindriving pulley 7 revolves the roller 8 which is preferably flutedcircumferentially so that the shell fragments are broken rather thanpulverized. The chute surface immediately below the roller is soconstructed as to giveway at any point laterally under a predeterminedpressure, and constitutes a salient feature of the To eflect this thesurface of the chute at 9 is formed by a series of flat steel barsplaced-side by side each bar 10 being hinged on the transverse pin 11and resting below the roller on a rubber cushion 12 supported by abearer-13.

sible accumulation of the material on theupper side of the bafiie plate,and is further eifective by deflecting rock fragments and pebblessidewards of the chute whereby they are evacuated through the aperture25 in the sides of the chute. I

Having now fully ascertained the nature of my saidinvention, what Iclaim as mine and desire to secure by Letters Patent, is:

In a combined crushing and separating machine having a trough shapedchute in which a transverse .circumferentially fluted roller revolvesthe combination comprising, a yieldable base that portion of the chutebelow'and opposite the said roller whereby a specially hard substancemay depress one portion of the chute base without depressing adjacentportions, a resilient member supporting the yieldable portion of saidbase, an oscillating .baflie plate positioned across the base ofsaidchute and having the form of two converging; curved plates each witha double hinge adjacent the side of the said chute whereby the crushedmaterial emerging from the roller may pass below the bot tom edge of thebattle and the larger por-. tions may be deflected to an exit by the curvature of the said baffle plates.

EDWARD HENRY. RIDER.

Thus when the adjusted pressure suited, v

to fracture the clam shells is exceeded as a pebbleis drawn under theroller the bar or bars immediately below .it .give way by compressingthe cushion 12, thereby allowing the pebble to pass along the chuteescapingat the space 14 when thecushion at once restores the bar 10 toits original level flush with the wood surface 6, the yielding pivotalbar is showndepressedat 15. The roller is carried by a bearing 16 ateach side and fitted with means for regulating the pressure exerted bythe spring 17. These may be of any usual form and call for no specialcomment.

The angular and curved bafile 18 is located at a suitable distance,beyond the roller 8,

this consists of a flat plate normal to the surface of the chute andpresenting a pair of curved sloping surfaces to all the descendingmaterial discharged from the roller 8.

The lower edge of the bafile 18 does not rest upon the surface of thechute except intermittently at points of support, but is dis tancedtherefrom by a narrow aperture suf- .ficient in width to pass the shellfragments rapidity ,of the process by v preventing pos-

